Getting Started

Sample Applications

This SDK comes with a sample application that demonstrates authorization, making API calls, and invoking a dialog, to guide you in development.

To build and run the sample application with Xcode:

Open the included Xcode Project File by selecting File->Open... and selecting sample/Hackbook/Hackbook.xcodeproj.

Verify your compiler settings by checking the menu items under Project->Set Active SDK and Project->Set Active Executable. For most developers, the defaults should be OK. Note that if you compile against a version of the iOS SDK that does not support multitasking, not all features of the Facebook SDK may be available. See the "Debugging" section below for more information.

Finally, select Build->Build and Run. This should compile the application and launch it.

Debugging

Common problems and solutions:

What version of the iOS SDK must I compile my application against to use single sign-on?

Single sign-on is available for apps built on version of iOS that support multitasking (generall v4.0 and higher--see Apple documentation for more information). Others applications will fall back to inline dialog-based authorization.

What version of the Facebook Application must a user have installed to use single sign-on?

The Facebook Application version 3.2.3 or higher will support single sign-on. Users with older versions will gracefully fall back to inline dialog-based authorization.

During single sign-on, the Facebook application isn't redirecting back to my application after a user authorizes it. What's wrong?

After upgrading to Xcode 4 the sample app will not build and I get the following error: [BEROR]No architectures to compile for (ARCHS=i386, VALID_ARCHS=armv7 armv6). What should I do?

Edit your build settings and add i386 to the list of valid architectures for the app. Click the project icon in the project navigator, select the Hackbook project, Build Settings tab, Architecture section, Valid Architectures option. Then click the grey arrow to expand, and double-click on right of Debug. After "armv6 armv7" add "i386".